require File.expand_path('../../../spec_helper', __FILE__)

ruby_version_is "1.9" do
  describe "Numeric#denominator" do
    # The Numeric child classes override this method, so their behaviour is
    # specified in the appropriate place
    before(:each) do
      @numbers = [
        20,             # Integer
        99999999**99,   # Bignum
      ]
    end

    it "returns 1" do
      @numbers.each {|number| number.denominator.should == 1}
    end

    it "works with Numeric subclasses" do
      rational = mock_numeric('rational')
      rational.should_receive(:denominator).and_return(:denominator)
      numeric = mock_numeric('numeric')
      numeric.should_receive(:to_r).and_return(rational)
      numeric.denominator.should == :denominator
    end
  end
end
